10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free MN-PEST questions are organized by exam domain, so you can see how each part of the Minnesota Commercial Pesticide Applicator Core Exam (Category A) blueprint is tested. Reveal the answer and explanation under each question.
A herbicide label states: “Apply 1-2 pints per acre. Do not make more than two applications per calendar year. Allow at least 14 days between applications. Do not harvest within 7 days after the last application.” The first application was made June 1. Which complete schedule complies with all four directions?
Correct answer: B - Apply 1.5 pints per acre June 17, then harvest June 25
A product label lists soybeans as a use site, names aphids and beetles, permits 1-2 pints per acre, does not limit use only to named pests, and prohibits aerial application. No more restrictive state rule applies. Under FIFRA section 2(ee), which proposal is permitted without separate supplemental labeling?
Correct answer: D - Ground-apply 1.5 pints per acre to soybeans for the unlisted caterpillar
The front panel of a pesticide bears DANGER because the concentrate is corrosive to the eyes. It does not bear a Restricted Use Pesticide statement. What conclusion is justified from these facts?
Correct answer: A - DANGER identifies acute hazard; restricted-use status requires its own front-panel statement
A pesticide concentrate has an acute oral LD50 of 120 mg/kg, a dermal LD50 of 8,000 mg/kg, and an inhalation LC50 of 6 mg/L. Eye and skin effects are Category III. Because the label category is based on the most severe acute endpoint, what front-panel signal word is required?
Correct answer: C - WARNING
While cleaning a sprayer used with an organophosphate insecticide, a handler develops pinpoint pupils, heavy salivation, diarrhea, muscle twitching, and wheezing. What should the crew do first?
Correct answer: A - End exposure, decontaminate, move to fresh air, and call emergency services
An applicator is selecting a particulate filter for an oil-containing pesticide aerosol. The label requires an oil-proof filter with at least 95% filtration efficiency. Which component meets both requirements?
Correct answer: B - A P95 particulate filter
At sunrise after a clear, calm night, smoke from a test source hangs in a shallow horizontal layer and the wind is light and variable. The label permits application only at 3-10 mph and prohibits application during a temperature inversion. What is the appropriate decision?
Correct answer: D - Delay until the inversion breaks and wind conditions meet the label
A strongly adsorbed, poorly soluble herbicide is planned for a steep field with saturated clay soil and a drainage ditch downslope. Heavy rain is forecast, and the label does not require rainfall incorporation. Which pathway is the immediate concern, and what response fits it?
Correct answer: C - Runoff on eroded sediment; delay treatment and protect the drainage route
After a broadcast treatment, one narrow untreated strip repeats through every pass at the same position on the boom. The same weed species is controlled in the adjacent spray pattern. What should be investigated first?
Correct answer: C - A plugged or damaged nozzle; inspect the boom before any retreatment
Scouting shows that a pest population has exceeded the established action threshold but remains below the economic injury level. Weather favors continued population growth, and an effective lawful tactic is available. How should this finding change the management plan?
Correct answer: A - Act now with an integrated tactic, then monitor to evaluate control
The MN-PEST exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,020 more MN-PEST questions with explanations.
Continue in the free practice test →
View plans